Twitter will introduce new metrics to show that its reach goes beyond the site’s 255 million monthly active users, The Wall Street Journal reported Monday citing unnamed sources.

The San Francisco-based company will unveil as many as four new metrics focused on the audience Twitter content reaches, including those who are not logged in, the report said.

The move underscores Twitter’s current dilemma vis-à-vis investors.

The company’s revenues are surging, but its user base is expanding at a slower rate, raising investor worries that Twitter’s growth path is limited. Twitter shares have fallen 19% in the last three months and have shed more than 40% year-to-date.

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